Chimney-cap



(No Model.)

J. HOULE. CHIMNEY GAP. 1 No. 602,451. Patented Apr. 19,1898.

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JOSEPH HOULE, OF BRADFORD, MASSACHUSETTS.

CHIMNEY-CAP.

SPECIFICATION forming part of Letters Patent No. 602,451, dated April 19, 1898.

Application filed January 9, 1897. Serial No. 618,625. No model.)

To all whom it may concern.-

Be it known that I, JOSEPH HOULE, acitizen of the United States, residing at Bradford, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Chimney-Caps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to certain new and useful improvements in chimney caps or cowls, the object of the same being to provide a simple device of this character provided with means whereby an induced draft of air is made in the chimney and one which will operate effectively in whatever direction the wind may be blowing.

The invention consists of the construction, combination,and arrangement of parts, which will be hereinafter more fully described and claimed.

The invention is clearly illustrated in the accompanying drawings, in which- Figure 1 represents a side elevation of my improved cowl in operative position upon the upper end of a chimney. Fig. 2 is a vertical longitudinal section through the same.

Like reference-numerals indicatelike parts in the different views.

Myimproved device is made up of a tubular portion 1, adapted to fit upon the upper end of the chimney 2 and cut away at its extreme upper end, as shown at 3. Fitting within the upper end of the tube 1 is a cone-shaped cap 4., constructed of sheet metal and forming, with the cut-away portions 3 of the tube 1, passages for the outlet of air from the chimney. On the outside of the tube 1 is an enlargement 5, made of sheet metal and having an gularly-arranged upper and lower surfaces. Said enlargement serves as a support for a plurality of angularly-arranged air-conduits 6 6, which are open at both ends and terminate at points adjacent to the upper end of the tube 1. The said conduits are in line with the cut-away portions 3 and with the lower edge of the cap 4. Fitting upon the upper side of the conduits 6 6 is a guide 7, constructed of sheet metal in the shape of the frustum of a cone, having an opening 8 at its upper end of the same size as the openingin the tubular portion 1 and formed with an annular flange 9 at its upper end, as clearly shown. The tube 1, the enlargement 5, the conduits 6 6, and the guide 7 are all soldered or otherwise secured one to another, so that they form a unitary structure. Located above the guide 7 is a hood 10, made of sheet metal in cone shape and connected to and supported upon the guide 7 by means of supporting rods or bars 11. The upper end of the hood 10 may have secured to it an ornamental extension 12 of any suitable configuration.

From the foregoing description the construction of my device will be readily understood. Its operation is as follows: The products of combustion pass through the tube 1, the cutaway portions 3 thereof, and the opening Sin the upper end of the guide 7. With the wind blowing in any direction a current of air will be guided upwardly through one or the other of the inclined conduits 6, and a similar current will be passing between the guide 7and the hood 10. The inclined surface of said guide will tend to force the air upwardly, and this action, in addition to a similar action brought about by the passing of the air through the conduits 6, will induce a draft upwardly and outwardly from the chimney 2.

The device is extremely simple in construction, can be cheaply made, is effective in operation, and will serve as an ornament to a chimney.

The uses to which my invention is adapted to be putare almost innumerable. For example, it may be used on school-houses, churches, or other stationary buildings, as well as upon railway-cars. In fact it maybe used in any connection where it is desired to ventilate a room into which the chimney leads.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A chimney-cowl made up of a tubular portion, cut away at its upper end, forming a series of openings, a cone-shaped cap fitting within the upper end of said tubular portion, a series of angularly-arranged air-conduits open at both ends, terminating at points adjacent to said cap and in line with the lower edges thereof and with said openings, a guide of sheet metal in the shape of the frustum of a cone open at its upper end, secured to the away portion, a guide of sheet metal in the shape of the frustum of a cone open at its upper end, secured to the upper side of said airconduits, and .a cone-shaped hood located above said guide and connected thereto bya series of rods or bars.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

JOSEPH HOULE.

Witnesses: JAMES M. SMITH, HARRY J. COLE. 

